发明公开

VIDEO DECODER AND METHODS
摘要:
The present disclosure relates to video encoding and decoding, and in particular to determining motion information for a current block using a history-based motion vector predictor, HMVP, list. The HMVP list is constructed, with said list being an ordered list of N HMVP candidates H k , k=0, ... , N-1, which are associated with motion information of N preceding blocks of the frame and precede the current block. Each HMVP candidate has motion information including elements of one or more motion vectors, MVs, one or more reference picture indices corresponding to the MVs, and one or more bi-prediction weight indices. One or more HMVP candidates from the HMVP list are added into a motion information candidate list for the current block; and the motion information is derived based on the motion information candidate list. The HMVP is further updated by comparing at least one of the elements of each history-based candidate of the HMVP list with the corresponding element of the current block. When the at least one of the HMVP elements differs from the corresponding element of the current block, the motion information of the current block is added to the HMVP list.
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